MITCalc

MITCalc is a set of engineering, industrial, and technical calculations for your day-to-day routines. It will reliably, precisely, and most of all quickly guide you through the design of components, the solution of a technical problem, or a calculation of an engineering point without any significant need for expert knowledge.

MITCalc is an open system designed in Microsoft Excel to which you can make further modifications or user extensions without any programming skills.